EP 1236937 A2 20020904 - Seal rings for potable water applications
Title (en)
Seal rings for potable water applications
Title (de)
Dichtungsringen zu den Trinkwasseranwendungen
Title (fr)
Bagues d'étanchéité pour des applications comprenant l'eau potable
Publication
Application
Priority
SE 0100398 A 20010208
Abstract (en)
The present invention relates to cemented carbide seal rings consisting of at least one hard phase in a binder phase based on Co, Ni and Fe giving a content Fe, Ni and Cr of less than 50 mu g/l of each in a leach test with deionized water at 85 DEG C performed according to the requirements of British Standard BS6920: Section 2.6: 1996. <IMAGE>
IPC 1-7
IPC 8 full level
C22C 29/08 (2006.01); C22C 19/03 (2006.01); C22C 29/06 (2006.01); C22C 38/00 (2006.01); F16J 15/34 (2006.01)
CPC (source: EP US)
C22C 29/067 (2013.01 - EP US); F16J 15/3496 (2013.01 - EP US)
Designated contracting state (EPC)
AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR
DOCDB simple family (publication)
EP 1236937 A2 20020904; EP 1236937 A3 20030115; EP 1236937 B1 20090401; AT E427442 T1 20090415; DE 60231770 D1 20090514; DK 1236937 T3 20090602; JP 2002302731 A 20021018; JP 4584530 B2 20101124; SE 0100398 D0 20010208; SE 0100398 L 20020809; SE 522571 C2 20040217; US 2002152840 A1 20021024; US 6602312 B2 20030805
DOCDB simple family (application)
EP 02445014 A 20020207; AT 02445014 T 20020207; DE 60231770 T 20020207; DK 02445014 T 20020207; JP 2002031030 A 20020207; SE 0100398 A 20010208; US 6780402 A 20020208